Important icons and indicators
Notification LED
Tells you when the battery is fully charged, low in power, is being charged, or when you have a pending notification, such as a missed call.
GPRS available. New Gmail message
New Exchange ActiveSync or POP3/IMAP email
New SMS/MMS
New voicemail
Upcoming event
Song is playing
New tweet
FM Radio in use
Call in progress
Missed call
Call on hold
Call forwarding on
Uploading data
Downloading data
Android Market application downloaded and installed
3G available Connected to AT&T 3G Signal strength
No signal Roaming Connected via
Alarm is set Speakerphone on Data synchronizing Vibrate mode Phone speaker is mute Battery is very low Battery is full Battery is charging